Orange Water Hardness & Quality Report (2026)

Orange, Texas, in Orange County — the Orange County seat on the Sabine River at the Texas-Louisiana state line, in the Golden Triangle petrochemical corridor with Beaumont and Port Arthur, a Gulf Coast industrial city with a historic riverboat and timber legacy — receives its municipal water from the City of Orange Water Division or the Southeast Texas Water Authority, drawing from the Sabine River at the Orange intake.

The moderately hard 161 mg/L hardness and TDS of 369.7 mg/L reflect the Sabine River's East Texas Pineywoods watershed chemistry. The Sabine River at Orange drains the East Texas Pineywoods — terrain underlain by the Eocene Claiborne Group (calcareous clay, sand, and lignite), the Wilcox Group (calcareous clay and sand), and the Gulf Coastal Plain alluvial deposits. The Sabine's moderate hardness and TDS are consistent with the East Texas-Louisiana calcareous Tertiary Coastal Plain stratigraphy — harder and more mineralized than the pure pine forest runoff, but much softer than the Central Texas Hill Country carbonate supplies.

At 161 mg/L, Orange's water is moderately hard — scale builds in kettles and appliances over months, dishwashers benefit from rinse aid, and faucet aerators need periodic cleaning. Quarterly descaling is appropriate. The PFAS level of 6.5 ppt warrants a certified drinking water filter — the Beaumont-Port Arthur petrochemical complex (Golden Triangle — major Texas Gulf Coast PFAS-class industrial corridor), the Naval Air Station Corpus Christi Sabine estuary upstream PFAS, and the Orange County industrial-refinery corridor contribute to Orange's PFAS readings.